This module serves as a pluggable interface for submodules of the e/gNodeB's LTE/NR protocol stack that implement functionalities requiring the use of the X2 interface for communication with peer e/gNodeBs, such as handover, dual connectivity, and Coordinated MultiPoint (CoMP). This module simplifies the interaction for such submodules by abstracting the details of X2Apps, which are the modules responsible for the actual communication through the X2 interface.

Used in compound modules

Name	Type	Description
LteNicEnb	compound module	The LteNicEnb module is a network interface that provides LTE connectivity within an eNodeB. It implements the data and signaling planes of the LTE stack, which includes the PDCP, RLC, MAC, and PHY layers. The parameters and submodules allow customization of the eNodeB's behavior, including whether it supports D2D communication, CoMP (Coordinated MultiPoint), or dual connectivity.

Parameters

Name	Type	Default value	Description
interfaceTableModule	string
binderModule	string	"binder"

Properties

Name	Value	Description
display	i=block/cogwheel

Gates

Name	Direction	Size	Description
dataPort [ ]	inout		connection to X2 user modules
x2 [ ]	inout		connections to X2App modules
x2Gtp	inout		connections to GtpUserX2 module

Source code

//
// This module serves as a pluggable interface for submodules of the e/gNodeB's LTE/NR protocol
// stack that implement functionalities requiring the use of the X2 interface for communication
// with peer e/gNodeBs, such as handover, dual connectivity, and Coordinated MultiPoint (CoMP).
// This module simplifies the interaction for such submodules by abstracting the details of X2Apps,
// which are the modules responsible for the actual communication through the X2 interface.
//
simple LteX2Manager
{
    parameters:
        @display("i=block/cogwheel");
        string interfaceTableModule;
        string binderModule = default("binder");

    gates:
        inout dataPort[]; // connection to X2 user modules
        inout x2[] @loose;       // connections to X2App modules
        inout x2Gtp @loose;      // connections to GtpUserX2 module
}

File: src/x2/LteX2Manager.ned

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